[GRASS-user] Question about r.watershed and flow accumulation grid

[Stefan Lüdtke]

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Hi Tom,

just out of curiosity, what do you mean by "break in the flow
accumulation"?

Cheers,

Stefan

On 02/13/2015 07:12 PM, Thomas Adams wrote:
> Hello all!
> 
> I'm making use of the flow accumulation grid in GRASS 6.4.5
> generated from r.watershed using the SFD (D8) flow algorithm. The
> DEM has a 250m spatial resolution. What I'm getting is a break in
> the flow accumulation in a few locations which is causing me
> serious problems with subsequent processing (with help from some
> here, I have put together some scripting to generate a pixel
> connectivity file for a distributed hydrologic model).
> 
> Besides going to a higher resolution DEM, are there any thoughts as
> to how I can eliminate these flow accumulation breaks?
> 
> Thank you, Tom
> 
> --
> 
> 
> 
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> list grass-user at lists.osgeo.org 
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> 

- -- 
Stefan Lüdtke

Section 5.4-  Hydrology
Tel.: +49 331 288 2821
Fax: +49 331 288 1570
Email: sluedtke at gfz-potsdam.de

Helmholtz-Zentrum Potsdam
Deutsches GeoForschungsZentrum GFZ
(GFZ German Research Centre for Geoscience)
Stiftung des öff. Rechts Land Brandenburg
Telegrafenberg, 14473 Potsdam
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